Biology:Chardonius

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Chardonius is an extinct genus of prehistoric freshwater ray-finned fish from the late Aptian or early Albian. It contains a single species, C. longicaudatus, from the Loia Beds of the Democratic Republic of the Congo.[1][2]

Its taxonomic placement is uncertain, and it has been alternatively classified as a "clupeoid" or a "salmoniform".[2][3] The latter classification is now thought to be a wastebasket treatment.[4] It is currently considered an indeterminate euteleost.[5]

Morphologically, it is notable for the extreme anterior insertion point of its dorsal fin compared to the anal fin.[5][6]

See also

  • Prehistoric fish
  • List of prehistoric bony fish

References

  1. ↑ "PBDB Taxon". https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=35509. 
  2. ↑ 2.0 2.1 López-Arbarello, Adriana. "The record of Mesozoic fishes from Gondwana (excluding India and Madagascar)". Mesozoic Fishes 3 – Systematics, Paleoenvironments and Biodiversity. https://www.researchgate.net/publication/258317087_The_record_of_Mesozoic_fishes_from_Gondwana_excluding_India_and_Madagascar. 
  3. ↑ Maisey, John G. (2000-04-01). "Continental break up and the distribution of fishes of Western Gondwana during the Early Cretaceous". Cretaceous Research 21 (2): 281–314. doi:10.1006/cres.1999.0195. ISSN 0195-6671. https://www.sciencedirect.com/science/article/pii/S0195667199901957. 
  4. ↑ Gallo, Valéria; de Figueiredo, Francisco J.; Azevedo, Sergio A. (2009). "Santanasalmo elegans gen. et sp. nov., a basal euteleostean fish from the Lower Cretaceous of the Araripe Basin, northeastern Brazil - Supplementary Material". Cretaceous Research 30 (6): 1357–1366. doi:10.1016/j.cretres.2009.07.005. ISSN 0195-6671. https://www.biorxiv.org/content/biorxiv/suppl/2018/09/23/424895.DC1/424895-1.pdf. 
  5. ↑ 5.0 5.1 Clarke, J. (2015). Evolutionary patterns derived from 150 million years of morphological and functional evolution in neopterygian fishes (Thesis). Oxford University, UK.
  6. ↑ Clarke, John T.; Friedman, Matt (2018). "Body-shape diversity in Triassic–Early Cretaceous neopterygian fishes: sustained holostean disparity and predominantly gradual increases in teleost phenotypic variety" (in en). Paleobiology 44 (3): 402–433. doi:10.1017/pab.2018.8. ISSN 0094-8373. https://www.cambridge.org/core/journals/paleobiology/article/abs/bodyshape-diversity-in-triassicearly-cretaceous-neopterygian-fishes-sustained-holostean-disparity-and-predominantly-gradual-increases-in-teleost-phenotypic-variety/121CF7A11173AE3B5B4684E9FE06BBED. 

Wikidata ☰ Q5074209 entry



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